Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Koyna Earthquake


THE Koyna earthquake of December 11, 1967, killed about 200 people and injured a few thousand. The eipcentre was within 5 km of the Koyna Dam (17° 23′ N., 73° 45′ E.). A magnitude of the order of 7.5 on the Richter scale has been reported by the Indian Meteorological Department and the Central Water and Power Research Station. The depth of focus of the earthquake has been estimated at about 30 km. The earthquake was felt over distances up to 700 km from the epicentre. Geologists, basing their opinion on this information, have suggested that the earthquake resulted from movements along a fault, possibly a satellite of the principal fault along the Malabar coast, and that it may be an isolated event unconnected with the reservoir and the earlier seismic activity.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Guha, S. K., Gosavi, P. D., Padale, J. G., and Marwadi, S. C., Third Symp Earthquake Engineering Roorkee, 399 (1966).

  2. 2

    Carder, D. S., Seismol. Soc. Amer. Bull., 35, 175 (1945).

    Google Scholar 

  3. 3

    Evans, M. D., Geotimes, 10, 11 (1966).

    Google Scholar 

  4. 4

    Evans, M. D., Geotimes, 12, 19 (1967).

    Google Scholar 

Download references

Author information



Rights and permissions

Reprints and Permissions

About this article

Cite this article

NARAIN, H., GUPTA, H. Koyna Earthquake. Nature 217, 1138–1139 (1968).

Download citation


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing